<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>03.条件渲染</title>
</head>
<body>
  <% if(isLogin){ %>
    <span>欢迎回家</span>
  <% }else{ %>
      <span>【登录/注册】</span>
  <% } %>
</body>
</html>